This is a description of a simple grading system. Here's how you could implement it in Python: ```python def grade_system(mark): if mark = 75: return 'A' elif 65

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This is a description of a simple grading system. Here's how you could implement it in Python:

```python
def grade_system(mark):
    if mark >= 75:
        return 'A'
    elif 65 <= mark < 75:
        return 'B'
    elif 50 <= mark < 65:
        return 'C'
    else:
        return 'F'

# Test the function
print(grade_system(80))  # Output: A
print(grade_system(70))  # Output: B
print(grade_system(60))  # Output: C
print(grade_system(40))  # Output: F
```

In this code, the function `grade_system` takes a student's total mark as input and returns the corresponding grade. The `if` and `elif` statements check which range the mark falls into and return the appropriate grade. If the mark doesn't fall into any of the specified ranges (i.e., it's below 50), the function returns 'F'.

Knowee AI · Accepted Answer

This is a description of a simple grading system. Here's how you could implement it in Python:

```python
def grade_system(mark):
    if mark >= 75:
        return 'A'
    elif 65 <= mark < 75:
        return 'B'
    elif 50 <= mark < 65:
        return 'C'
    else:
        return 'F'

# Test the function
print(grade_system(80))  # Output: A
print(grade_system(70))  # Output: B
print(grade_system(60))  # Output: C
print(grade_system(40))  # Output: F
```

In this code, the function `grade_system` takes a student's total mark as input and returns the corresponding grade. The `if` and `elif` statements check which range the mark falls into and return the appropriate grade. If the mark doesn't fall into any of the specified ranges (i.e., it's below 50), the function returns 'F'.

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